Ink-distributer for printing-presses



Gf. W. HUNT.

INK DISTRIBUTER FUR PRINTING PRESSES.

(No Model.)

Patented Oct. 15,1895.

UNIT-ED STATES GEORGE W. HUNT, OF

PATENT OFFICEa WATERVILLE, MAINE.

INK-DISTRIBUTER FOR PRINTING-PRESSES.

SPECIFICATION forming part of Letters Patent No. 547,922, dated October15, 1895.

Application filed December 15, 1894. Serial No. 531,997- (No model.)

To a/ZZ whom it may concern: t

Be it known that I, GEORGE'W. HUNT, of Waterville, Maine, have inventeda certain new and useful Improvement in Ink-Distributers forPrinting-Presses, of which the following is a specification.

My invention relates to devices for delivering ink to the inking-rollersof a printingpress, and has for its object to provide an ink fountain ortank of such construction and of such relative arrangement with respectto the inking-rollers of a printing-press that it is possible for theink to be more evenly and uniformly distributed to the rollers than indevices heretofore designed for similar purposes.

I will describe an ink-fountain embodying the features of myimprovement, and then point out the novel features in the claims.

In the accompanying drawings, Figure l is a perspective view of anink-fountain embodying my improvement and shows a method of applying thesame. Fig. 2 is a transverse section of my improved ink-fountain.A Fig.3 is a longitudinal section of the same.

Similar letters of reference designate corresponding parts in all thegures.

I have shown my invention as being applied to an ordinary job-printingpress A, having an ink-disk A" and inking-rollers B B B2. Thisparticular form of press I have taken for the sake of illustration, butthe invention may be with equal advantage applied to other forms ofpresses, since its application to any form consists merely in sopositioning the ink-fountain relatively to the inking roller or rollersor auxiliary rollers as will permit the rollers to roll upon the lowersurface of the fountain during a part of their movement. t

The ink-fountain consists, essentially, in a box-like receptacle or tankprovided with a perforated bottom and suspended or so supported that theinking-rollers may roll along its lower surface. The perforations in thebottom of the ink-fountain are not of a size, however, sufficient toallow the contained ink to pass freely through them. Furthermore, thenumber of these perforations to which the ink has access to pass to theoutside of the fountain can be varied by an adjustable cover l or slideadapted to move over the bottom -of the fountain, covering or uncoveringthe perforations therein.

Referring to Fig. l, the ink-rollers E` B B2 are shown as beingconstructed tomove over the upper surface of an inking-disk A', whilethey also move over the under surface of the ink-fountain C. The latteris made in the form of a cradle pivoted to an axis extending in adirection substantially parallel to that of the inking-rollers. Thefountain will be seen to comprise a box-like receptacle or tank C',pivotally suspended by hangers D D from a shaft or rod E, secured to astandard F, the latter extending from a fixed support-as, for instance,the stationary part of the press. The hangers D D may conveniently bemade of pieces of Wire, which are secured at their ends to the side ofthe tank near one end of the latter, then extended upward and bent toform eyes d d at the middle portions to embrace the shaft or rod E, andfinally downward to the opposite end of the tank, to which they aresecured.

cl2 is a tie-rod extending from one hanger to the opposite hanger neartheir pivotal portions.

The plate forming the bottom c of the tank C is provided with a numberof perforations c2 sufficiently small in area to prevent the ink frompassing freely through the same.

C2 is a slide adapted to move lengthwise in the tank C over the bottomof the same. It

can be adjusted inward and outward for the purpose of increasing ordecreasing the number of perforations exposed. The slide is preferablyformed of a flat flexible strip-for instance, sheet metal. The guidesfor directing the movement of the slide may be made of pieces of wiresecured, as by soldering, to the side walls of the tank on their innersurfaces in close proximityto the bottom c. The lower or outer surfaceof the bottom of the tank is curved longitudinally, and the fountain isso supported that as the advancing roller B passes upward onto the diskA it contacts with the perforated bottom of the tank somewhat near therear portion of the latter. The fountain now swings backward through thefriction of the roller, the latter at the same time rolling over theperforated bottom, and

IOO

as the substances forming such rollers are of a more or lesscompressible nature the ink is drawn ont and passes through theperforations and is deposited uniformly over the periphery of theroller. During the progress of the roller forward it will, on account ofthe angularity of the disk and the lower surface of the fountain, passout of contact with the latter. The fountain is in consequence carriedcontinuously to the outer limit of its movement. During the backwardmovement of the rollers the motion of the fountain is reversed, and itis carried back to its normal position.

Having described my invention, what I consider as new, and desire tosecure by Letters Patent, is-

l. A pivoted ink fountain or tank for a printing press having aperforated bottom and capable of being oscillated upon its pivots in thedirection of movement of the rollers, the rollers drawing the inkthrough the perforatious during such movement substantially asspecified.

2. A pivoted ink fountain or tank for a printing press, with which therollers of the press are adapted to contact, having a perforated bottom,combined with an adjustable slide adapted to cover and. uncover the saidperforations, substantially as specified.

3. A pivoted ink fountain or tank for a printing press, adapted tocontact with and be oscillated by the rollers of the press, the fountainbeing provided with a perforated bottom through which ink is drawn bythe rollers, substantially as specified.

4. An ink fountain or tank for a printing press suitably supported tomove in the direction of movement of the rollers, the rollers contactingwith the rear portion of the fountain and rolling over its lower surfaceand drawing ink through perforations provided in the bottom of thefountain, substantially as specified.

5. An ink fountain or tank for a printing press, having an oscillatingmotion, and provided with a perforated bottom combined with a slide forcovering and uncovering the perforations, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE W. IlUN'l.

Witnesses:

WARREN C. PHILBRooK, MARGARET REID.

